WO2015108858A1 - Systèmes et procédés pour localisation thermique de trous de refroidissement - Google Patents

Systèmes et procédés pour localisation thermique de trous de refroidissement Download PDF

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Publication number
WO2015108858A1
WO2015108858A1 PCT/US2015/011176 US2015011176W WO2015108858A1 WO 2015108858 A1 WO2015108858 A1 WO 2015108858A1 US 2015011176 W US2015011176 W US 2015011176W WO 2015108858 A1 WO2015108858 A1 WO 2015108858A1
Authority
WO
WIPO (PCT)
Prior art keywords
component
material layer
cooling hole
cavity
thermal
Prior art date
Application number
PCT/US2015/011176
Other languages
English (en)
Inventor
David A. Raulerson
Kevin D. Smith
Zhong Ouyang
Lisa J. BRASCHE
William J. Brindley
David N. POTTER
Original Assignee
United Technologies Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Technologies Corporation filed Critical United Technologies Corporation
Priority to EP15737252.5A priority Critical patent/EP3094865A4/fr
Priority to US15/030,326 priority patent/US10471552B2/en
Publication of WO2015108858A1 publication Critical patent/WO2015108858A1/fr
Priority to US16/584,233 priority patent/US20200016702A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P6/00—Restoring or reconditioning objects
    • B23P6/002—Repairing turbine components, e.g. moving or stationary blades, rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/003—Arrangements for testing or measuring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/08—Cooling; Heating; Heat-insulation
    • F01D25/12—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/005—Repairing methods or devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/70—Determining position or orientation of objects or cameras
    • G06T7/73—Determining position or orientation of objects or cameras using feature-based methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/06—Cooling passages of turbine components, e.g. unblocking or preventing blocking of cooling passages of turbine components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
    • F01D5/186—Film cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F01D5/288—Protective coatings for blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/10—Manufacture by removing material
    • F05D2230/13—Manufacture by removing material using lasers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/80—Repairing, retrofitting or upgrading methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/80—Diagnostics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/81—Modelling or simulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
    • F05D2300/611—Coating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/72—Investigating presence of flaws
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10048—Infrared image
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30108—Industrial image inspection
    • G06T2207/30164—Workpiece; Machine component

Definitions

  • TITLE SYSTEMS AND METHODS FOR THERMAL LOCATION OF
  • the present disclosure relates generally gas turbine engines. More particularly, the present disclosure relates to systems and methods for thermal location of cooling holes in components in gas turbine engines.
  • Gas turbine engines typically comprise components which include cooling holes.
  • a worn or distressed material layer e.g., a thermal barrier coating
  • a replacement layer may be applied to the component.
  • the replacement layer may cover the prior cooling holes and obscure the cooling holes from view. It may be desirable to nondestructively locate the cooling holes in order to remove the material covering the cooling holes.
  • a method of repairing a component may comprise depositing a material layer on a surface of the component.
  • the component may be heated with a pulsed heat source. Thermal properties of the component may be measured.
  • a cavity in the component may be located based on the thermal properties.
  • a portion of the material layer may be removed to expose the cavity.
  • the material layer may comprise a thermal barrier layer. Measuring the thermal properties may comprise capturing a series of infrared images of the component.
  • the cavity may comprise a cooling hole. Locating the cavity may comprise locating a center of the cavity.
  • the removing the portion of the material layer may comprise aligning a laser drill with an angle of the cavity.
  • the component may comprise an aircraft component.
  • the method may further comprise creating a 2-dimensional thermal image of the component.
  • the method may further comprise comparing the cavity to known specifications of the component in order to determine an angle of the cavity relative to the surface of the component.
  • the method may further comprise setting a power of a laser drill such that the removing the portion of the material layer removes a portion of the material layer without damaging the component.
  • a method of locating a cooling hole may comprise heating a component and a material layer disposed on a surface of the component with a pulsed heat source.
  • a series of thermal images of the component may be captured with an infrared camera.
  • the series of thermal images may be processed to identify temperature gradients on the component. Based on the temperature gradients, a location of a center of a first cooling hole may be identified.
  • the method may further comprise comparing the location of the center of the first cooling hole with known specifications for the component.
  • the method may further comprise identifying an angle of the first cooling hole relative to the surface of the component based on the known specifications.
  • the method may further comprise heating the component with the pulsed heat source a second time.
  • the method may further comprise locating a center of a second cooling hole.
  • a system for repairing a component may comprise a pulsed heat source configured to heat the component.
  • the system may comprise an infrared camera configured to capture a series of thermal images of the component.
  • the system may comprise a computer coupled to the infrared camera and configured to identify a location of a cooling hole.
  • the system may comprise a removal tool configured to remove a portion of a material layer covering the cooling hole.
  • the removal tool may comprise a laser drill coaxial with the infrared camera.
  • the computer may comprise stored specifications of the component.
  • the computer may be configured to align the removal tool with an angle of the cooling hole based on the stored specifications.
  • the computer may be configured to direct movement of the removal tool.
  • FIG. 1 illustrates a schematic cross-section view of a gas turbine engine in accordance with various embodiments
  • FIG. 2 illustrates a perspective view of a turbine vane in accordance with various embodiments
  • FIG. 3 illustrates a cross-section view of a turbine vane in accordance with various embodiments
  • FIG. 4 illustrates a 2-dimensional thermal image in accordance with various embodiments
  • FIG. 5 illustrates a cross-section view of a turbine vane with a portion of a material layer removed in accordance with various embodiments
  • FIG. 6 illustrates a cross-section view of a turbine vane with an angled portion of a material layer removed in accordance with various embodiments.
  • FIG. 7 illustrates a flow diagram of a process for repairing a component in accordance with various embodiments.
  • thermally locating cooling holes may include heating a component and thermally imaging the component in order to detect thermal variations on the surface.
  • heating the entire component may take long durations and use large amounts of energy. Additionally, some components may be too large or otherwise unsuited to such methods.
  • Systems and methods are disclosed herein for thermally locating cooling holes. Although described primarily with reference to a turbine vane, the disclosed systems and methods may be applied to any component comprising cooling holes which are obscured from view. Similarly, although described primarily with respect to cooling holes, the disclosed systems and methods may be used to detect the location of many subsurface features of a component.
  • a material layer such as a thermal barrier coating (“TBC”) may be applied to the surface of the turbine vane.
  • TBC thermal barrier coating
  • the TBC may cover cooling holes in the turbine vane.
  • a pulsed heat source may heat the surface of the turbine vane and the TBC.
  • An infrared camera may map thermal patterns, or thermograms, of the turbine vane surface over time. Variations in the thermograms may indicate the location of the cooling holes.
  • a removal tool such as a laser drill, may be directed at the location of the cooling holes and may remove the TBC covering the cooling holes.
  • Gas turbine engine 100 (such as a turbofan gas turbine engine) is illustrated according to various embodiments.
  • Gas turbine engine 100 is disposed about axial centerline axis 120, which may also be referred to as axis of rotation 120.
  • Gas turbine engine 100 may comprise a fan 140, compressor sections 150 and 160, a combustion section 180, and a turbine section 190. Air compressed in the compressor sections 150, 160 may be mixed with fuel and burned in combustion section 180 and expanded across turbine section 190.
  • Turbine section 190 may include high pressure rotors 192 and low pressure rotors 194, which rotate in response to the expansion.
  • Turbine section 190 may comprise alternating rows of rotary airfoils or blades 196 and static airfoils or vanes 198.
  • a plurality of bearings 115 may support spools in the gas turbine engine 100. Many of the components of gas turbine engine 100 may comprise cooling holes.
  • FIG. 1 provides a general understanding of the sections in a gas turbine engine, and is not intended to limit the disclosure. The present disclosure may extend to all types of turbine engines, including turbofan gas turbine engines and turbojet engines, for all types of applications.
  • the forward-aft positions of gas turbine engine 100 lie along axis of rotation 120.
  • fan 140 may be referred to as forward of turbine section 190 and turbine section 190 may be referred to as aft of fan 140.
  • aft of fan 140 Typically, during operation of gas turbine engine 100, air flows from forward to aft, for example, from fan 140 to turbine section 190.
  • axis of rotation 120 may also generally define the direction of the air stream flow.
  • Turbine vane 200 may comprise a plurality of cooling holes 210.
  • a material layer (not shown), such as a TBC, may be placed on turbine vane 200.
  • the TBC may obstruct cooling holes 210 from view.
  • Turbine vane 200 may comprise a first cooling hole 310 and a second cooling hole 312.
  • the various cooling holes may be positioned at various angles relative to an outer surface 320 of turbine vane 200.
  • first cooling hole 310 may be positioned at an angle ⁇ relative to outer surface 320.
  • angle ⁇ is 60 ° .
  • second cooling hole 312 may be substantially perpendicular to outer surface 320.
  • cooling holes may be positioned at any angle relative to outer surface 320.
  • a material layer 330 may be placed on outer surface 320 during repair of turbine vane 200. Material layer 330 may cover first cooling hole 310 and second cooling hole 312. However, it may be desirable to remove portions of material layer 330 in order to expose first cooling hole 310 and second cooling hole 312.
  • a pulsed heat source 340 may be directed at outer surface 320.
  • Pulsed heat source 340 may comprise any heat source suitable for performing pulsed thermography.
  • pulsed heat source 340 may comprise a xenon flash lamp array, a quartz flash source and/or an LED flash source.
  • Pulsed heat source 340 may emit light pulses for durations such as between 20 milliseconds and 30 milliseconds, or between 1 millisecond and 40 milliseconds.
  • Turbine vane 200 may heat and cool non- uniformly due to subsurface variations, such as first cooling hole 310 and second cooling hole 312.
  • An infrared camera 350 may thermally image turbine vane 200.
  • Infrared camera 350 may comprise any suitable infrared camera known in the art. Such cameras may have a frame with an area defined by a finite number of pixels. Infrared camera 350 may detect changes in surface temperature as turbine vane 200 heats during the light pulse and subsequently cools. Each pixel of infrared camera 350 may record thermal data from a specific location of turbine vane 200. Thus, a single pixel may provide data of the thermal characteristics of a specific location as turbine vane 200 heats and cools.
  • a removal tool 360 may be configured to remove portions of material layer 330.
  • removal tool 360 may comprise a laser drill configured to remove portions of material layer 330.
  • removal tool 360 may comprise at least one of a water jet, mechanical drill, pencil grit blast, or any other device capable of removing a portion of material layer 330.
  • removal tool 360 may be coupled to and/or coaxial with infrared camera 350. Thus, in response to infrared camera 350 centering on a specific location, such as first cooling hole 310, removal tool 360 may be focused on the specific location.
  • At least one of infrared camera 350 and removal tool 360 may be coupled to a computer 370.
  • Computer 370 may be configured to process data measured by infrared camera 350.
  • Computer 370 may further be configured to direct movement of infrared camera 350 and/or removal tool 360.
  • a 2-dimensional thermal image may be constructed based on data from the individual pixels of infrared camera 350.
  • Isotherms 410 may connect locations of substantially similar temperatures or thermal conductivity. Areas with few isotherms may represent areas of relatively little variation in thermal conductivity, and areas with isotherms spaced closely together may represent relatively large gradients in thermal conductivity.
  • isotherms 410 may be substantially circular, and may thus represent a cooling hole which is substantially perpendicular to outer surface 320, such as first cooling hole 310 shown in FIG. 3.
  • a center point P of isotherms 410 in region A may indicate a location of the center of second cooling hole 312.
  • isotherms 410 may be elongated or ovoid.
  • isotherms 410 in region B may represent a cooling hole which is located at an angle relative to outer surface 320, such as first cooling hole 310 shown in FIG. 3.
  • An angle of first cooling hole 310 may be determined by various methods.
  • a location of first cooling hole 310 may be compared to known specifications for turbine vane 200.
  • the specifications may be stored in computer 370.
  • the specifications may comprise the known angle for cooling holes at the location being thermally imaged.
  • the known angle may be used to align removal tool 360 with the cooling hole.
  • turbine vane 200 is illustrated with a portion of material layer 330 removed.
  • a power of removal tool 360 may be set such that removal tool 360 may remove material layer 330 without damaging turbine vane 200. Removal tool 360 may be focused on a center of first cooling hole 310 and may remove a portion of material layer 330 which covers first cooling hole 310. The power level of removal tool 360 may prevent damage to turbine vane 200 even if the laser beam emitted from removal tool 360 contacts turbine vane 200.
  • turbine vane 200 is illustrated with an angled portion of material layer 330 removed.
  • Removal tool 360 may be positioned to align with first cooling hole 310, and removal tool 360 may remove the portion of material layer 330 covering first cooling hole 310. After removal tool 360 has removed the portion of material layer 330 covering first cooling hole 310, a laser beam emitted from removal tool 360 may pass through first cooling hole 310 without contacting turbine vane 200.
  • a material layer may be deposited on a surface of a component (step 710).
  • the material layer may comprise a thermal barrier coating.
  • the material layer may cover a cavity, such as cooling holes in the component.
  • a pulsed heat source may heat the component and the material layer (step 720).
  • the component may heat and cool unevenly due to the presence of the cooling holes.
  • An infrared camera may capture heat emitted by the component (step 730). In various embodiments, the infrared camera may capture a series of images over time as the component heats and subsequently cools.
  • the data captured by the infrared camera may be processed to locate the cooling holes (step 740).
  • a removal tool may remove the portion of the material layer covering a cooling hole (step 750).
  • the removal tool may be aligned with an angle of the cooling hole relative to the surface of the component.
  • the pulsed heat source may heat the component a second time, and a second cooling hole may be located. The removal tool may then remove the portion of the material layer covering the second cooling hole. The process may continue until the material layer has been removed from all desired cooling holes.
  • references to "one embodiment”, “an embodiment”, “various embodiments”, etc. indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described. After reading the description, it will be apparent to one skilled in the relevant art(s) how to implement the disclosure in alternative embodiments.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Laser Beam Processing (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

L'invention porte sur des systèmes et sur des procédés pour réparer des éléments. Une couche de matériau peut être déposée sur une surface d'un élément. La couche de matériau peut recouvrir un trou de refroidissement. Une source de chaleur pulsée peut chauffer l'élément et la couche de matériau. Une caméra à infrarouges peut prendre une série d'images de l'élément. Un emplacement du trou de refroidissement peut être identifié sur la base de propriétés thermiques de l'élément. Un outil de retrait peut retirer une partie de la couche de matériau afin d'exposer le trou de refroidissement.
PCT/US2015/011176 2014-01-16 2015-01-13 Systèmes et procédés pour localisation thermique de trous de refroidissement WO2015108858A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP15737252.5A EP3094865A4 (fr) 2014-01-16 2015-01-13 Systèmes et procédés pour localisation thermique de trous de refroidissement
US15/030,326 US10471552B2 (en) 2014-01-16 2015-01-13 Systems and methods for thermal location of cooling holes
US16/584,233 US20200016702A1 (en) 2014-01-16 2019-09-26 Systems and methods for thermal location of cooling holes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201461928327P 2014-01-16 2014-01-16
US61/928,327 2014-01-16

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US15/030,326 A-371-Of-International US10471552B2 (en) 2014-01-16 2015-01-13 Systems and methods for thermal location of cooling holes
US16/584,233 Division US20200016702A1 (en) 2014-01-16 2019-09-26 Systems and methods for thermal location of cooling holes

Publications (1)

Publication Number Publication Date
WO2015108858A1 true WO2015108858A1 (fr) 2015-07-23

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PCT/US2015/011176 WO2015108858A1 (fr) 2014-01-16 2015-01-13 Systèmes et procédés pour localisation thermique de trous de refroidissement

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US (2) US10471552B2 (fr)
EP (1) EP3094865A4 (fr)
WO (1) WO2015108858A1 (fr)

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GB2565079A (en) * 2017-07-31 2019-02-06 Erodex Uk Ltd Inspection system and method for turbine vanes and blades
CN110322506A (zh) * 2018-03-29 2019-10-11 韦伯斯特生物官能(以色列)有限公司 定位体腔的开口
CN110440689A (zh) * 2019-07-25 2019-11-12 中国人民解放军火箭军工程大学 一种自适应的球面锥孔视觉绞修设备
US10815817B2 (en) 2016-01-21 2020-10-27 Raytheon Technologies Corporation Heat flux measurement system
US11986897B2 (en) 2021-05-20 2024-05-21 Rolls-Royce Plc Debris removal

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US10101577B2 (en) * 2015-04-13 2018-10-16 Siemens Energy, Inc. System to prognose gas turbine remaining useful life
US10443385B2 (en) * 2016-02-03 2019-10-15 General Electric Company In situ gas turbine prevention of crack growth progression via laser welding
US10544676B2 (en) * 2016-02-03 2020-01-28 General Electric Company Situ gas turbine prevention of crack growth progression
US20170218762A1 (en) * 2016-02-03 2017-08-03 General Electric Company Situ Gas Turbine Prevention of Crack Growth Progression
US10834336B2 (en) 2018-01-29 2020-11-10 Ge Aviation Systems Llc Thermal imaging of aircraft

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US10471552B2 (en) 2019-11-12
US20200016702A1 (en) 2020-01-16
US20160318135A1 (en) 2016-11-03
EP3094865A1 (fr) 2016-11-23
EP3094865A4 (fr) 2017-09-13

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